FCST: Major Snowstorm for Upper Midwest, Great Lakes & N

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Andrew Revering
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FCST: Major Snowstorm for Upper Midwest, Great Lakes & N

Post by Andrew Revering » Sun Feb 12, 2006 3:45 pm

GFS is advertising quite the snowstorm for much of the upper midwest, great lakes through southern Ontario and northern New England.

Some raw liquid to snow conversions put the heaviest swath of snow along a line from Central and Southern Minnesota to Oshkosh, WI to Lake Huron into Ontario and then into far northern Maine.

The time frame depends on your location but here's my interpretation of sunday morning's GFS run:

Thursday Morning through Thursday Night:
Minneapolis, MN 7-8"
Des Moines, IA 4"

Thursday Morning through Mid-Day Friday:
UP of Michigan: 6-7"
Oshkosh, WI: 9"
Lake Huron: 19-20"

Mid Day Friday through Saturday Morning:
Northern Maine: 20"
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Andrew Revering
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Post by Andrew Revering » Mon Feb 13, 2006 4:08 pm

Storm still looks on course. 12z runs seemed to push the storm farther south, but a preliminary glance at the 18z versions have the storm again with the same path as previously discussed here.

The only change that appears is the cold air (read: dry air) on the north side pushes the gradient of snow farther south and perhaps moves Minneapolis out of the big path, and leaving the northern fringes of the heaviest snowfall in Southeast Minnesota. Lets call it Rochester as the northernmost extent. East-Central and Southeast Wisconsin still looks to get hit hard.
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